initial check-in

1 files changed, 257 insertions, 0 deletions

diff --git a/java/ant/Slice2JavaTask.java b/java/ant/Slice2JavaTask.java
new file mode 100644
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+// **********************************************************************
+//
+// Copyright (c) 2001
+// MutableRealms, Inc.
+// Huntsville, AL, USA
+//
+// All Rights Reserved
+//
+// **********************************************************************
+
+//package Ice.Ant;
+
+import org.apache.tools.ant.Task;
+import org.apache.tools.ant.BuildException;
+import org.apache.tools.ant.DirectoryScanner;
+import org.apache.tools.ant.types.FileSet;
+import org.apache.tools.ant.taskdefs.ExecTask;
+import org.apache.tools.ant.types.Commandline.Argument;
+import org.apache.tools.ant.types.Path;
+import org.apache.tools.ant.types.Reference;
+
+import java.io.File;
+import java.io.FileOutputStream;
+
+/**
+ * An ant task for slice2java. The task minimizes regeneration by
+ * creating a tag file whose timestamp represents the last time
+ * the corresponding Slice file was generated.
+ *
+ * Attributes:
+ *
+ *   translator - The pathname of the translator (default: "slice2java").
+ *   tagdir - The directory in which tag files are located (default: ".").
+ *   outputdir - The value for the --output-dir translator option.
+ *   package - The value for the --package translator option.
+ *
+ * Nested elements:
+ *
+ *   includepath - The directories in which to search for Slice files.
+ *       These are converted into -I directives for the translator.
+ *   fileset - The set of Slice files to generate.
+ *
+ * Example:
+ *
+ *    <project ...>
+ *        <taskdef name="slice2java" classname="Slice2JavaTask" />
+ *        <property name="slice.dir" value="../include/slice"/>
+ *        <target name="generate">
+ *            <mkdir dir="tags" />
+ *            <slice2java tagdir="tags" outputdir="out" package="com.foo">
+ *                <includepath>
+ *                    <pathelement path="${slice.dir}" />
+ *                </includepath>
+ *                <fileset dir="${slice.dir}">
+ *                    <include name="*.ice" />
+ *                </fileset>
+ *            </slice2java>
+ *        </target>
+ *    </project>
+ *
+ * The <taskdef> element installs the slice2java task.
+ */
+public class Slice2JavaTask extends org.apache.tools.ant.Task
+{
+    public
+    Slice2JavaTask()
+    {
+        _translator = "slice2java";
+        _tagDir = ".";
+        _outputDir = null;
+        _package = null;
+        _includePath = null;
+        _fileSet = null;
+    }
+
+    public void
+    setTranslator(String prog)
+    {
+        _translator = prog;
+    }
+
+    public void
+    setTagdir(String dir)
+    {
+        _tagDir = dir;
+    }
+
+    public void
+    setOutputdir(String dir)
+    {
+        _outputDir = dir;
+    }
+
+    public void
+    setPackage(String pkg)
+    {
+        _package = pkg;
+    }
+
+    public Path
+    createIncludePath()
+    {
+        if (_includePath == null) 
+        {
+            _includePath = new Path(project);
+        }
+        return _includePath.createPath();
+    }
+
+    public void
+    setIncludePathRef(Reference ref)
+    {
+        createIncludePath().setRefid(ref);
+    }
+
+    public void
+    setIncludePath(Path includePath)
+    {
+        if (_includePath == null)
+        {
+            _includePath = includePath;  
+        }
+        else
+        {
+            _includePath.append(includePath);
+        }
+    }
+
+    public FileSet
+    createFileset()
+    {
+        if (_fileSet == null) 
+        {
+            _fileSet = new FileSet();
+        }
+        return _fileSet;
+    }
+
+    public void
+    execute()
+        throws BuildException
+    {
+        if (_fileSet == null)
+        {
+            throw new BuildException("No fileset specified");
+        }
+
+        //
+        // Compose a list of the files that need to be translated
+        //
+        java.util.Vector buildList = new java.util.Vector();
+        java.util.Vector tagList = new java.util.Vector();
+        DirectoryScanner scanner = _fileSet.getDirectoryScanner(project);
+        scanner.scan();
+        String[] files = scanner.getIncludedFiles();
+        for (int i = 0; i < files.length; i++)
+        {
+            File slice = new File(_fileSet.getDir(project), files[i]);
+            File tag = new File(_tagDir, "." + slice.getName() + ".tag");
+
+            if (tag.exists() && slice.lastModified() <= tag.lastModified())
+            {
+                log("skipping " + files[i]);
+            }
+            else
+            {
+                buildList.addElement(slice);
+                tagList.addElement(tag);
+            }
+        }
+
+        //
+        // Run the translator
+        //
+        if (!buildList.isEmpty())
+        {
+            StringBuffer cmd = new StringBuffer();
+
+            //
+            // Add --output-dir
+            //
+            if (_outputDir != null)
+            {
+                cmd.append(" --output-dir ");
+                cmd.append(_outputDir);
+            }
+
+            //
+            // Add --package
+            //
+            if (_package != null)
+            {
+                cmd.append(" --package ");
+                cmd.append(_package);
+            }
+
+            //
+            // Add include directives
+            //
+            if (_includePath != null)
+            {
+                String[] dirs = _includePath.list();
+                for (int i = 0; i < dirs.length; i++)
+                {
+                    cmd.append(" -I");
+                    cmd.append(dirs[i]);
+                }
+            }
+
+            //
+            // Add files to be translated
+            //
+            for (int i = 0; i < buildList.size(); i++)
+            {
+                File f = (File)buildList.elementAt(i);
+                cmd.append(" ");
+                cmd.append(f.toString());
+            }
+
+            //
+            // Execute
+            //
+            log(_translator + " " + cmd);
+            ExecTask task = (ExecTask)project.createTask("exec");
+            task.setFailonerror(true);
+            Argument arg = task.createArg();
+            arg.setLine(cmd.toString());
+            task.setExecutable(_translator);
+            task.execute();
+
+            //
+            // Touch the tag files
+            //
+            for (int i = 0; i < tagList.size(); i++)
+            {
+                File f = (File)tagList.elementAt(i);
+                try
+                {
+                    FileOutputStream out = new FileOutputStream(f);
+                    out.close();
+                }
+                catch(java.io.IOException ex)
+                {
+                    throw new BuildException("Unable to create tag file " +
+                                             f + ": " + ex);
+                }
+            }
+        }
+    }
+
+    private String _translator;
+    private String _tagDir;
+    private String _outputDir;
+    private String _package;
+    private Path _includePath;
+    private FileSet _fileSet;
+}